Real Madrid star Cristiano Ronaldo sure knows how to appease La Liga fans when it comes to his long-term future in Spain.

According to The Guardian, CR7 made a recent appearance at a school in Singapore, and during the course of the question-and-answer portion, he gave mixed signals about both his future with Real Madrid and a potential return to English football before the end of his career.

Ronaldo's rise to stardom began back in 2003 with Manchester United, a club that allowed him to both grow as a player and experience high-level international play at a young age.

He left Old Trafford for the Bernabeu in 2009, and since then has only cemented his status as one of the top three players on the planet each time he takes the pitch.

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Ronaldo finished with 62 goals in 68 matches across all competition during the 2012-13 season, shining once again as Los Blancos made it to the semifinals in the Champions League and finished second in the La Liga table behind rival Barcelona.

But is it enough to keep Ronaldo in Spain for the long haul?

LiveFootball had these inconclusive tweets from his comments in Singapore:

Cristiano Ronaldo: "I miss English football. Manchester United is a club that is still in my heart and I really, really miss." #MUFC

While no one can fault the 28-year-old's comments about his "love" for Spain and Real Madrid, it's the reference to his first love—Manchester United—that makes things murkier than ever in terms of Ronaldo's future in professional football.

And nearly all of us know that our first love can be extremely hard to shake.

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Things have been anything but smooth for Real Madrid when the subject of their star striker is broached, and that starts with contract-extension negotiations.

While discussions of a potential record-breaking contract extension like the one reported by Ben Hayward and Alberto Pinero of Goal.com have been rampant, nothing has officially been decided about Ronaldo's long-term future at the Bernabeu.

Ronaldo himself posted this cryptic tweet during a time when it was expected that he would re-up with the club long before the 2013-14 season begins:

Ian Herbert and Pete Jenson of The Independent later reported that Ronaldo's advisors were quietly urging him to play out the final 18 months of his contract. The move would then allow him to squeeze the most money out of the transfer period, fueling speculation that Madrid might have to make a transfer decision to avoid seeing him walk away for nothing.

Which club will Ronaldo end his career with?

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Which club will Ronaldo end his career with?

Real Madrid

20.4%

Manchester United

70.6%

Other

9.0%

Total votes: 255

Wednesday's news from Singapore only heightens the amount of uncertainty surrounding what appears to be one of the most interesting sagas in all of professional football right now.

Ronaldo did nothing to inform Real Madrid bosses or supporters that he won't be ready to help Los Blancos prepare to compete for the La Liga title next season.

Then again, he did nothing to prove that he wants to be around after that year, either.